diff --git a/README.md b/README.md
index d36cede..e1c0a43 100644
--- a/README.md
+++ b/README.md
@@ -22,6 +22,10 @@ features:
 
   ![Goto Declaration](images/goto_declaration_demo.png)
 
+- Hover provider for declared symbols.
+
+  ![Hover](images/hover_demo.png)
+
 ## Configuration
 
 ### Loading external Modelica libraries
diff --git a/client/package-lock.json b/client/package-lock.json
index 839298a..198da3b 100644
--- a/client/package-lock.json
+++ b/client/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "modelica-language-server-client",
-  "version": "0.2.3",
+  "version": "0.3.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "modelica-language-server-client",
-      "version": "0.2.3",
+      "version": "0.3.0",
       "license": "OSMC-PL-1-8",
       "dependencies": {
         "vscode-languageclient": "^10.0.0"
@@ -21,9 +21,9 @@
       }
     },
     "node_modules/@types/vscode": {
-      "version": "1.120.0",
-      "resolved": "https://registry.npmjs.org/@types/vscode/-/vscode-1.120.0.tgz",
-      "integrity": "sha512-feaT4Rst+FkTch5zz/ZbNCxoIvo55YU80Be2kiL7OJcod4+CUYf2lUBPdIJzozNnSEMq1VRTGrWEcCGFB3fBmA==",
+      "version": "1.125.0",
+      "resolved": "https://registry.npmjs.org/@types/vscode/-/vscode-1.125.0.tgz",
+      "integrity": "sha512-0icm/ZQAaism87P0ekHqi4/Ju9du+Tm0RUW+y7vqRsxY2cY0FNRX1nAnaW7nT6npPt2tfHiheZ55Zm9UhqonFA==",
       "dev": true,
       "license": "MIT"
     },
@@ -45,13 +45,11 @@
       }
     },
     "node_modules/agent-base": {
-      "version": "7.1.1",
-      "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-7.1.1.tgz",
-      "integrity": "sha512-H0TSyFNDMomMNJQBn8wFV5YC/2eJ+VXECwOadZJT554xP6cODZHPX3H9QMQECxvrgiSOP1pHjy1sMWQVYJOUOA==",
+      "version": "7.1.4",
+      "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-7.1.4.tgz",
+      "integrity": "sha512-MnA+YT8fwfJPgBx3m60MNqakm30XOkyIoH1y6huTQvC0PwZG7ki8NacLBcrPbNoo8vEZy7Jpuk7+jMO+CUovTQ==",
       "dev": true,
-      "dependencies": {
-        "debug": "^4.3.4"
-      },
+      "license": "MIT",
       "engines": {
         "node": ">= 14"
       }
@@ -136,15 +134,17 @@
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.3.tgz",
       "integrity": "sha512-ZQBvi1DcpJ4GDqanjucZ2Hj3wEO5pZDS89BWbkcrvdxksJorwUDDZamX9ldFkp9aw2lmBDLgkObEA4DWNJ9FYQ==",
-      "dev": true
+      "dev": true,
+      "license": "MIT"
     },
     "node_modules/debug": {
-      "version": "4.3.5",
-      "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.5.tgz",
-      "integrity": "sha512-pt0bNEmneDIvdL1Xsd9oDQ/wrQRkXDT4AUWlNZNPKvW5x/jyO9VFXkJUP07vQ2upmw5PlaITaPKc31jK13V+jg==",
+      "version": "4.4.3",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-4.4.3.tgz",
+      "integrity": "sha512-RGwwWnwQvkVfavKVt22FGLw+xYSdzARwm0ru6DhTVA3umU5hZc28V3kO4stgYryrTlLpuvgI9GiijltAjNbcqA==",
       "dev": true,
+      "license": "MIT",
       "dependencies": {
-        "ms": "2.1.2"
+        "ms": "^2.1.3"
       },
       "engines": {
         "node": ">=6.0"
@@ -180,6 +180,7 @@
       "resolved": "https://registry.npmjs.org/http-proxy-agent/-/http-proxy-agent-7.0.2.tgz",
       "integrity": "sha512-T1gkAiYYDWYx3V5Bmyu7HcfcvL7mUrTWiM6yOfa3PIphViJ/gFPbvidQ+veqSOHci/PxBcDabeUNCzpOODJZig==",
       "dev": true,
+      "license": "MIT",
       "dependencies": {
         "agent-base": "^7.1.0",
         "debug": "^4.3.4"
@@ -189,12 +190,13 @@
       }
     },
     "node_modules/https-proxy-agent": {
-      "version": "7.0.5",
-      "resolved": "https://registry.npmjs.org/https-proxy-agent/-/https-proxy-agent-7.0.5.tgz",
-      "integrity": "sha512-1e4Wqeblerz+tMKPIq2EMGiiWW1dIjZOksyHWSUm1rmuvw/how9hBHZ38lAGj5ID4Ik6EdkOw7NmWPy6LAwalw==",
+      "version": "7.0.6",
+      "resolved": "https://registry.npmjs.org/https-proxy-agent/-/https-proxy-agent-7.0.6.tgz",
+      "integrity": "sha512-vK9P5/iUfdl95AI+JVyUuIcVtd4ofvtrOr3HNtM2yxC9bnMbEdp3x01OhQNnjb8IJYi38VlTE3mBXwcfvywuSw==",
       "dev": true,
+      "license": "MIT",
       "dependencies": {
-        "agent-base": "^7.0.2",
+        "agent-base": "^7.1.2",
         "debug": "4"
       },
       "engines": {
@@ -205,13 +207,15 @@
       "version": "3.0.6",
       "resolved": "https://registry.npmjs.org/immediate/-/immediate-3.0.6.tgz",
       "integrity": "sha512-XXOFtyqDjNDAQxVfYxuF7g9Il/IbWmmlQg2MYKOH8ExIT1qg6xc4zyS3HaEEATgs1btfzxq15ciUiY7gjSXRGQ==",
-      "dev": true
+      "dev": true,
+      "license": "MIT"
     },
     "node_modules/inherits": {
       "version": "2.0.4",
       "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
       "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==",
-      "dev": true
+      "dev": true,
+      "license": "ISC"
     },
     "node_modules/is-interactive": {
       "version": "2.0.0",
@@ -243,13 +247,15 @@
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/isarray/-/isarray-1.0.0.tgz",
       "integrity": "sha512-VLghIWNM6ELQzo7zwmcg0NmTVyWKYjvIeM83yjp0wRDTmUnrM678fQbcKBo6n2CJEF0szoG//ytg+TKla89ALQ==",
-      "dev": true
+      "dev": true,
+      "license": "MIT"
     },
     "node_modules/jszip": {
       "version": "3.10.1",
       "resolved": "https://registry.npmjs.org/jszip/-/jszip-3.10.1.tgz",
       "integrity": "sha512-xXDvecyTpGLrqFrvkrUSoxxfJI5AH7U8zxxtVclpsUtMCq4JQ290LY8AW5c7Ggnr/Y/oK+bQMbqK2qmtk3pN4g==",
       "dev": true,
+      "license": "(MIT OR GPL-3.0-or-later)",
       "dependencies": {
         "lie": "~3.3.0",
         "pako": "~1.0.2",
@@ -262,6 +268,7 @@
       "resolved": "https://registry.npmjs.org/lie/-/lie-3.3.0.tgz",
       "integrity": "sha512-UaiMJzeWRlEujzAuw5LokY1L5ecNQYZKfmyZ9L7wDHb/p5etKaxXhohBcrw0EYby+G/NA52vRSN4N39dxHAIwQ==",
       "dev": true,
+      "license": "MIT",
       "dependencies": {
         "immediate": "~3.0.5"
       }
@@ -325,10 +332,11 @@
       }
     },
     "node_modules/ms": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
-      "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==",
-      "dev": true
+      "version": "2.1.3",
+      "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
+      "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==",
+      "dev": true,
+      "license": "MIT"
     },
     "node_modules/onetime": {
       "version": "7.0.0",
@@ -374,19 +382,22 @@
       "version": "1.0.11",
       "resolved": "https://registry.npmjs.org/pako/-/pako-1.0.11.tgz",
       "integrity": "sha512-4hLB8Py4zZce5s4yd9XzopqwVv/yGNhV1Bl8NTmCq1763HeK2+EwVTv+leGeL13Dnh2wfbqowVPXCIO0z4taYw==",
-      "dev": true
+      "dev": true,
+      "license": "(MIT AND Zlib)"
     },
     "node_modules/process-nextick-args": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/process-nextick-args/-/process-nextick-args-2.0.1.tgz",
       "integrity": "sha512-3ouUOpQhtgrbOa17J7+uxOTpITYWaGP7/AhoR3+A+/1e9skrzelGi/dXzEYyvbxubEF6Wn2ypscTKiKJFFn1ag==",
-      "dev": true
+      "dev": true,
+      "license": "MIT"
     },
     "node_modules/readable-stream": {
       "version": "2.3.8",
       "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.8.tgz",
       "integrity": "sha512-8p0AUk4XODgIewSi0l8Epjs+EVnWiK7NoDIEGU0HhE7+ZyY8D1IMY7odu5lRrFXGg71L15KG8QrPmum45RTtdA==",
       "dev": true,
+      "license": "MIT",
       "dependencies": {
         "core-util-is": "~1.0.0",
         "inherits": "~2.0.3",
@@ -418,12 +429,13 @@
       "version": "5.1.2",
       "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
       "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==",
-      "dev": true
+      "dev": true,
+      "license": "MIT"
     },
     "node_modules/semver": {
-      "version": "7.8.2",
-      "resolved": "https://registry.npmjs.org/semver/-/semver-7.8.2.tgz",
-      "integrity": "sha512-c8jsqUZm3omBOI66G90z1Dyw5z622G8oLG+omfsHBJf3CWQTlOcwOjvOG6wtiNfW6anKm/eA39LMwMtMez2TiQ==",
+      "version": "7.8.5",
+      "resolved": "https://registry.npmjs.org/semver/-/semver-7.8.5.tgz",
+      "integrity": "sha512-Y7/KDsb8LjooZpwaqGyulO6DQlksgCncchHGk+sZIY4SBvUocMBEFH5Ur1fI4dV+Jvl0w6cjvucaIi40puRioA==",
       "license": "ISC",
       "bin": {
         "semver": "bin/semver.js"
@@ -436,7 +448,8 @@
       "version": "1.0.5",
       "resolved": "https://registry.npmjs.org/setimmediate/-/setimmediate-1.0.5.tgz",
       "integrity": "sha512-MATJdZp8sLqDl/68LfQmbP8zKPLQNV6BIZoIgrscFDQ+RsvK/BxeDQOgyxKKoh0y/8h3BqVFnCqQ/gd+reiIXA==",
-      "dev": true
+      "dev": true,
+      "license": "MIT"
     },
     "node_modules/signal-exit": {
       "version": "4.1.0",
@@ -469,6 +482,7 @@
       "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
       "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
       "dev": true,
+      "license": "MIT",
       "dependencies": {
         "safe-buffer": "~5.1.0"
       }
@@ -511,7 +525,8 @@
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
       "integrity": "sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw==",
-      "dev": true
+      "dev": true,
+      "license": "MIT"
     },
     "node_modules/vscode-jsonrpc": {
       "version": "9.0.0",
diff --git a/client/package.json b/client/package.json
index 57432d8..5516785 100644
--- a/client/package.json
+++ b/client/package.json
@@ -3,7 +3,7 @@
   "description": "VSCode part of a language server",
   "author": "Andreas Heuermann, Osman Karabel, Evan Hedbor, PaddiM8",
   "license": "OSMC-PL-1-8",
-  "version": "0.2.3",
+  "version": "0.3.0",
   "publisher": "vscode",
   "repository": {
     "type": "git",
diff --git a/client/src/test/onHover.test.ts b/client/src/test/onHover.test.ts
new file mode 100644
index 0000000..b0c71cd
--- /dev/null
+++ b/client/src/test/onHover.test.ts
@@ -0,0 +1,108 @@
+/*
+ * This file is part of OpenModelica.
+ *
+ * Copyright (c) 1998-2026, Open Source Modelica Consortium (OSMC),
+ * c/o Linköpings universitet, Department of Computer and Information Science,
+ * SE-58183 Linköping, Sweden.
+ *
+ * All rights reserved.
+ *
+ * THIS PROGRAM IS PROVIDED UNDER THE TERMS OF AGPL VERSION 3 LICENSE OR
+ * THIS OSMC PUBLIC LICENSE (OSMC-PL) VERSION 1.8.
+ * ANY USE, REPRODUCTION OR DISTRIBUTION OF THIS PROGRAM CONSTITUTES
+ * RECIPIENT'S ACCEPTANCE OF THE OSMC PUBLIC LICENSE OR THE GNU AGPL
+ * VERSION 3, ACCORDING TO RECIPIENTS CHOICE.
+ *
+ * The OpenModelica software and the OSMC (Open Source Modelica Consortium)
+ * Public License (OSMC-PL) are obtained from OSMC, either from the above
+ * address, from the URLs:
+ * http://www.openmodelica.org or
+ * https://github.com/OpenModelica/ or
+ * http://www.ida.liu.se/projects/OpenModelica,
+ * and in the OpenModelica distribution.
+ *
+ * GNU AGPL version 3 is obtained from:
+ * https://www.gnu.org/licenses/licenses.html#GPL
+ *
+ * This program is distributed WITHOUT ANY WARRANTY; without
+ * even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE, EXCEPT AS EXPRESSLY SET FORTH
+ * IN THE BY RECIPIENT SELECTED SUBSIDIARY LICENSE CONDITIONS OF OSMC-PL.
+ *
+ * See the full OSMC Public License conditions for more details.
+ *
+ */
+
+import * as fs from 'fs';
+import * as vscode from 'vscode';
+import * as assert from 'assert';
+import { getDocUri, getDocPath, activate, executeProviderUntilResult } from './helper';
+
+suite('onHover information', async () => {
+  test('Step', async () => {
+    const docUri = getDocUri('step.mo');
+    const position = new vscode.Position(19, 25);
+    const content = new vscode.MarkdownString(
+      fs.readFileSync(getDocPath('step.md'), 'utf-8'));
+    const expectedHoverInstances: vscode.Hover[] = [
+      new vscode.Hover(content)
+    ];
+
+    await testOnHover(docUri, position, expectedHoverInstances);
+  });
+
+  test('velocityOfSound_ph', async () => {
+    const docUri = getDocUri('velocityOfSound_ph.mo');
+    const position = new vscode.Position(0, 20);
+    const content = new vscode.MarkdownString(
+      fs.readFileSync(getDocPath('velocityOfSound_ph.md'), 'utf-8'));
+    const expectedHoverInstances: vscode.Hover[] = [
+      new vscode.Hover(content)
+    ];
+
+    await testOnHover(docUri, position, expectedHoverInstances);
+  });
+});
+
+async function testOnHover(
+  uri: vscode.Uri,
+  position: vscode.Position,
+  expectedHoverInstances: vscode.Hover[]
+) {
+  await activate(uri);
+
+  // Execute `vscode.executeHoverProvider` to execute all hover providers
+  const actualHoverInstances = await executeProviderUntilResult<vscode.Hover[]>(
+    "vscode.executeHoverProvider",
+    [uri, position],
+  );
+
+  assertHoverInstancesEqual(expectedHoverInstances, actualHoverInstances);
+}
+
+function assertHoverInstancesEqual(expected: vscode.Hover[], actual: vscode.Hover[]) {
+  assert.strictEqual(expected.length, actual.length, 'Array lengths do not match.');
+
+  for (let i = 0; i < expected.length; i++) {
+    const expectedHover = expected[i];
+    const actualHover = actual[i];
+
+    let expectedContent = "";
+    for (let j = 0; j < expectedHover.contents.length; j++) {
+      const content = expectedHover.contents[j];
+      if (content instanceof vscode.MarkdownString) {
+        expectedContent += content.value;
+      }
+    }
+
+    let actualContent = "";
+    for (let j = 0; j < actualHover.contents.length; j++) {
+      const content = actualHover.contents[j];
+      if (content instanceof vscode.MarkdownString) {
+        actualContent += content.value;
+      }
+    }
+
+    assert.strictEqual(actualContent.trim(), expectedContent.trim(), `Content does not match expected content.`);
+  }
+}
diff --git a/client/testFixture/MyLibrary/Examples/M.mo b/client/testFixture/MyLibrary/Examples/M.mo
new file mode 100644
index 0000000..bc51403
--- /dev/null
+++ b/client/testFixture/MyLibrary/Examples/M.mo
@@ -0,0 +1,7 @@
+within MyLibrary.Examples;
+
+model M "MWE Modelica Model"
+  Real x(start = 1.0, fixed = true);
+equation
+  der(x) = -0.5*x;
+end M;
diff --git a/client/testFixture/MyLibrary/Examples/package.mo b/client/testFixture/MyLibrary/Examples/package.mo
new file mode 100644
index 0000000..e938914
--- /dev/null
+++ b/client/testFixture/MyLibrary/Examples/package.mo
@@ -0,0 +1,4 @@
+within MyLibrary;
+
+package Examples
+end Examples;
diff --git a/client/testFixture/MyLibrary/Examples/package.order b/client/testFixture/MyLibrary/Examples/package.order
new file mode 100644
index 0000000..ab77689
--- /dev/null
+++ b/client/testFixture/MyLibrary/Examples/package.order
@@ -0,0 +1 @@
+M
diff --git a/client/testFixture/MyLibrary/package.mo b/client/testFixture/MyLibrary/package.mo
new file mode 100644
index 0000000..7b8ef37
--- /dev/null
+++ b/client/testFixture/MyLibrary/package.mo
@@ -0,0 +1,2 @@
+package MyLibrary "My Modelica Library"
+end MyLibrary;
diff --git a/client/testFixture/MyLibrary/package.order b/client/testFixture/MyLibrary/package.order
new file mode 100644
index 0000000..ad6b7fb
--- /dev/null
+++ b/client/testFixture/MyLibrary/package.order
@@ -0,0 +1 @@
+Examples
diff --git a/client/testFixture/step.md b/client/testFixture/step.md
new file mode 100644
index 0000000..90f3cb9
--- /dev/null
+++ b/client/testFixture/step.md
@@ -0,0 +1,20 @@
+```modelica
+class Modelica_Blocks_Sources_Step "Generate step signal of type Real"
+```
+---
+
+**Parameter Inputs**
+```modelica
+parameter input Real height = 1.0 "Height of step";
+```
+**Outputs**
+```modelica
+output Real y "Connector of Real output signal";
+```
+
+**Parameter**
+```modelica
+parameter input Real height = 1.0 "Height of step";
+parameter Real offset = 0.0 "Offset of output signal y";
+parameter Real startTime(quantity = "Time", unit = "s") = 0.0 "Output y = offset for time < startTime";
+```
diff --git a/client/testFixture/step.mo b/client/testFixture/step.mo
new file mode 100644
index 0000000..04262d1
--- /dev/null
+++ b/client/testFixture/step.mo
@@ -0,0 +1,20 @@
+class Modelica_Blocks_Sources_Step "Generate step signal of type Real"
+  parameter input Real height = 1.0 "Height of step";
+  output Real y "Connector of Real output signal";
+  parameter Real offset = 0.0 "Offset of output signal y";
+  parameter Real startTime(quantity = "Time", unit = "s") = 0.0 "Output y = offset for time < startTime";
+equation
+  y = offset + (if time < startTime then 0.0 else height);
+  annotation (
+    Documentation(info="<html>
+<p>
+The Real output y is a step signal:
+</p>
+
+<p>
+<img src=\"modelica://Modelica/Resources/Images/Blocks/Sources/Step.png\"
+   alt=\"Step.png\">
+</p>
+
+</html>"));
+end Modelica_Blocks_Sources_Step;
diff --git a/client/testFixture/velocityOfSound_ph.md b/client/testFixture/velocityOfSound_ph.md
new file mode 100644
index 0000000..5bfbcf4
--- /dev/null
+++ b/client/testFixture/velocityOfSound_ph.md
@@ -0,0 +1,16 @@
+```modelica
+function velocityOfSound_ph
+```
+---
+**Inputs**
+```modelica
+input SI.Pressure p "Pressure";
+input SI.SpecificEnthalpy h "Specific enthalpy";
+input Integer phase = 0 "2 for two-phase, 1 for one-phase, 0 if not known";
+input Integer region = 0 "If 0, region is unknown, otherwise known and this input";
+```
+
+**Outputs**
+```modelica
+output SI.Velocity v_sound "Speed of sound";
+```
diff --git a/client/testFixture/velocityOfSound_ph.mo b/client/testFixture/velocityOfSound_ph.mo
new file mode 100644
index 0000000..2bd5f0c
--- /dev/null
+++ b/client/testFixture/velocityOfSound_ph.mo
@@ -0,0 +1,11 @@
+function velocityOfSound_ph
+  extends Modelica.Icons.Function;
+  input SI.Pressure p "Pressure";
+  input SI.SpecificEnthalpy h "Specific enthalpy";
+  input Integer phase = 0 "2 for two-phase, 1 for one-phase, 0 if not known";
+  input Integer region = 0 "If 0, region is unknown, otherwise known and this input";
+  output SI.Velocity v_sound "Speed of sound";
+algorithm
+  v_sound := velocityOfSound_props_ph(p, h, waterBaseProp_ph(p, h, phase, region));
+  annotation(Inline = true);
+end velocityOfSound_ph;
diff --git a/images/hover_demo.png b/images/hover_demo.png
new file mode 100644
index 0000000..8151876
Binary files /dev/null and b/images/hover_demo.png differ
diff --git a/server/README.md b/server/README.md
index 67b05bd..10af6b9 100644
--- a/server/README.md
+++ b/server/README.md
@@ -16,7 +16,7 @@ This package is the standalone LSP server. It communicates over stdio and works
 | Go to declaration         | ✓       |
 | Go to definition          | ✓       |
 | Incremental document sync | ✓       |
-| Hover                     | planned |
+| Hover                     | ✓       |
 | Completion                | planned |
 
 ## Installation
diff --git a/server/package-lock.json b/server/package-lock.json
index 5c7ef57..cf3c797 100644
--- a/server/package-lock.json
+++ b/server/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@openmodelica/modelica-language-server",
-  "version": "0.2.3",
+  "version": "0.3.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@openmodelica/modelica-language-server",
-      "version": "0.2.3",
+      "version": "0.3.0",
       "license": "(AGPL-3.0-only OR LicenseRef-OSMC-PL-1-8)",
       "dependencies": {
         "vscode-languageserver": "^10.0.0",
@@ -27,9 +27,9 @@
       }
     },
     "node_modules/@esbuild/aix-ppc64": {
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-      "resolved": "https://registry.npmjs.org/@esbuild/aix-ppc64/-/aix-ppc64-0.28.0.tgz",
-      "integrity": "sha512-lhRUCeuOyJQURhTxl4WkpFTjIsbDayJHih5kZC1giwE+MhIzAb7mEsQMqMf18rHLsrb5qI1tafG20mLxEWcWlA==",
+      "version": "0.28.1",
+      "resolved": "https://registry.npmjs.org/@esbuild/aix-ppc64/-/aix-ppc64-0.28.1.tgz",
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       "cpu": [
         "ppc64"
       ],
@@ -40,13 +40,13 @@
         "aix"
       ],
       "engines": {
-        "node": ">=12"
+        "node": ">=18"
       }
     },
     "node_modules/@esbuild/android-arm": {
-      "version": "0.28.0",
-      "resolved": "https://registry.npmjs.org/@esbuild/android-arm/-/android-arm-0.28.0.tgz",
-      "integrity": "sha512-wqh0ByljabXLKHeWXYLqoJ5jKC4XBaw6Hk08OfMrCRd2nP2ZQ5eleDZC41XHyCNgktBGYMbqnrJKq/K/lzPMSQ==",
+      "version": "0.28.1",
+      "resolved": "https://registry.npmjs.org/@esbuild/android-arm/-/android-arm-0.28.1.tgz",
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         "arm"
       ],
@@ -61,9 +61,9 @@
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     },
     "node_modules/@esbuild/android-arm64": {
-      "version": "0.28.0",
-      "resolved": "https://registry.npmjs.org/@esbuild/android-arm64/-/android-arm64-0.28.0.tgz",
-      "integrity": "sha512-+WzIXQOSaGs33tLEgYPYe/yQHf0WTU0X42Jca3y8NWMbUVhp7rUnw+vAsRC/QiDrdD31IszMrZy+qwPOPjd+rw==",
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+      "resolved": "https://registry.npmjs.org/@esbuild/android-arm64/-/android-arm64-0.28.1.tgz",
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         "arm64"
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@@ -78,9 +78,9 @@
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     "node_modules/@esbuild/android-x64": {
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-      "resolved": "https://registry.npmjs.org/@esbuild/android-x64/-/android-x64-0.28.0.tgz",
-      "integrity": "sha512-+VJggoaKhk2VNNqVL7f6S189UzShHC/mR9EE8rDdSkdpN0KflSwWY/gWjDrNxxisg8Fp1ZCD9jLMo4m0OUfeUA==",
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+      "resolved": "https://registry.npmjs.org/@esbuild/android-x64/-/android-x64-0.28.1.tgz",
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@@ -95,9 +95,9 @@
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     "node_modules/@esbuild/darwin-arm64": {
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-      "resolved": "https://registry.npmjs.org/@esbuild/darwin-arm64/-/darwin-arm64-0.28.0.tgz",
-      "integrity": "sha512-0T+A9WZm+bZ84nZBtk1ckYsOvyA3x7e2Acj1KdVfV4/2tdG4fzUp91YHx+GArWLtwqp77pBXVCPn2We7Letr0Q==",
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@@ -112,9 +112,9 @@
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-      "resolved": "https://registry.npmjs.org/@esbuild/darwin-x64/-/darwin-x64-0.28.0.tgz",
-      "integrity": "sha512-fyzLm/DLDl/84OCfp2f/XQ4flmORsjU7VKt8HLjvIXChJoFFOIL6pLJPH4Yhd1n1gGFF9mPwtlN5Wf82DZs+LQ==",
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@@ -129,9 +129,9 @@
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-      "resolved": "https://registry.npmjs.org/@esbuild/freebsd-arm64/-/freebsd-arm64-0.28.0.tgz",
-      "integrity": "sha512-l9GeW5UZBT9k9brBYI+0WDffcRxgHQD8ShN2Ur4xWq/NFzUKm3k5lsH4PdaRgb2w7mI9u61nr2gI2mLI27Nh3Q==",
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@@ -146,9 +146,9 @@
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@@ -163,9 +163,9 @@
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     "node_modules/@esbuild/linux-arm": {
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-      "resolved": "https://registry.npmjs.org/@esbuild/linux-arm/-/linux-arm-0.28.0.tgz",
-      "integrity": "sha512-CjaaREJagqJp7iTaNQjjidaNbCKYcd4IDkzbwwxtSvjI7NZm79qiHc8HqciMddQ6CKvJT6aBd8lO9kN/ZudLlw==",
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+      "resolved": "https://registry.npmjs.org/@esbuild/linux-arm/-/linux-arm-0.28.1.tgz",
+      "integrity": "sha512-qVXBOHQS+d5Y722GwJzJUtOLlX7km3CraOaGormF1pDtPd2C/l1SHRPgjLunLGe51Sh5YYWKMFDyV4SxgMQYTQ==",
       "cpu": [
         "arm"
       ],
@@ -180,9 +180,9 @@
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-      "resolved": "https://registry.npmjs.org/@esbuild/linux-arm64/-/linux-arm64-0.28.0.tgz",
-      "integrity": "sha512-RVyzfb3FWsGA55n6WY0MEIEPURL1FcbhFE6BffZEMEekfCzCIMtB5yyDcFnVbTnwk+CLAgTujmV/Lgvih56W+A==",
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@@ -197,9 +197,9 @@
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-      "resolved": "https://registry.npmjs.org/@esbuild/linux-ia32/-/linux-ia32-0.28.0.tgz",
-      "integrity": "sha512-KBnSTt1kxl9x70q+ydterVdl+Cn0H18ngRMRCEQfrbqdUuntQQ0LoMZv47uB97NljZFzY6HcfqEZ2SAyIUTQBQ==",
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+      "resolved": "https://registry.npmjs.org/@esbuild/linux-ia32/-/linux-ia32-0.28.1.tgz",
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       "cpu": [
         "ia32"
       ],
@@ -214,9 +214,9 @@
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-      "resolved": "https://registry.npmjs.org/@esbuild/linux-loong64/-/linux-loong64-0.28.0.tgz",
-      "integrity": "sha512-zpSlUce1mnxzgBADvxKXX5sl8aYQHo2ezvMNI8I0lbblJtp8V4odlm3Yzlj7gPyt3T8ReksE6bK+pT3WD+aJRg==",
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         "loong64"
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@@ -231,9 +231,9 @@
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     "node_modules/@esbuild/linux-mips64el": {
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-      "resolved": "https://registry.npmjs.org/@esbuild/linux-mips64el/-/linux-mips64el-0.28.0.tgz",
-      "integrity": "sha512-2jIfP6mmjkdmeTlsX/9vmdmhBmKADrWqN7zcdtHIeNSCH1SqIoNI63cYsjQR8J+wGa4Y5izRcSHSm8K3QWmk3w==",
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+      "resolved": "https://registry.npmjs.org/@esbuild/linux-mips64el/-/linux-mips64el-0.28.1.tgz",
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@@ -248,9 +248,9 @@
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-      "resolved": "https://registry.npmjs.org/@esbuild/linux-ppc64/-/linux-ppc64-0.28.0.tgz",
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@@ -265,9 +265,9 @@
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@@ -282,9 +282,9 @@
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@@ -299,9 +299,9 @@
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@@ -316,9 +316,9 @@
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@@ -333,9 +333,9 @@
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@@ -350,9 +350,9 @@
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@@ -418,9 +418,9 @@
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@@ -435,9 +435,9 @@
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-      "version": "0.28.0",
-      "resolved": "https://registry.npmjs.org/@esbuild/win32-ia32/-/win32-ia32-0.28.0.tgz",
-      "integrity": "sha512-zF3ag/gfiCe6U2iczcRzSYJKH1DCI+ByzSENHlM2FcDbEeo5Zd2C86Aq0tKUYAJJ1obRP84ymxIAksZUcdztHA==",
+      "version": "0.28.1",
+      "resolved": "https://registry.npmjs.org/@esbuild/win32-ia32/-/win32-ia32-0.28.1.tgz",
+      "integrity": "sha512-zvb/mB2bSCoJOpoCBgYKKpX6YM6mJBlBUVUtVj41DlZJVEB6/0CKlRYxP5wWl1C1ILiCoAU5wZZ4q1P3qeS6Eg==",
       "cpu": [
         "ia32"
       ],
@@ -452,9 +452,9 @@
       }
     },
     "node_modules/@esbuild/win32-x64": {
-      "version": "0.28.0",
-      "resolved": "https://registry.npmjs.org/@esbuild/win32-x64/-/win32-x64-0.28.0.tgz",
-      "integrity": "sha512-pEl1bO9mfAmIC+tW5btTmrKaujg3zGtUmWNdCw/xs70FBjwAL3o9OEKNHvNmnyylD6ubxUERiEhdsL0xBQ9efw==",
+      "version": "0.28.1",
+      "resolved": "https://registry.npmjs.org/@esbuild/win32-x64/-/win32-x64-0.28.1.tgz",
+      "integrity": "sha512-bm4Mowrv+GXMlpWX++EcXw/iLyd1o3+bJkC2DkWXYVvgZCqD/bSj9ctZeAMC3cIxgjRVR2Dufaiu4YPxr5gW1A==",
       "cpu": [
         "x64"
       ],
@@ -469,9 +469,9 @@
       }
     },
     "node_modules/@types/node": {
-      "version": "25.9.1",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-25.9.1.tgz",
-      "integrity": "sha512-xfrlY7UD5rMJk3ZVJP8BNzS28J36YJg+xp+LPXV1TdWxr8uMH5A860QNxYDGQe/ylDSgjxE52Q9VnO7p75tJxg==",
+      "version": "25.9.4",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-25.9.4.tgz",
+      "integrity": "sha512-dszCsrKb5U7ZsVZBWiHFklTloVl0mSEnWH/iZXfZUlI4rzCUnsvGmgqfuVRHL54ugE7/wRuxEIXRa2iMZ+BG6g==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
@@ -479,9 +479,9 @@
       }
     },
     "node_modules/esbuild": {
-      "version": "0.28.0",
-      "resolved": "https://registry.npmjs.org/esbuild/-/esbuild-0.28.0.tgz",
-      "integrity": "sha512-sNR9MHpXSUV/XB4zmsFKN+QgVG82Cc7+/aaxJ8Adi8hyOac+EXptIp45QBPaVyX3N70664wRbTcLTOemCAnyqw==",
+      "version": "0.28.1",
+      "resolved": "https://registry.npmjs.org/esbuild/-/esbuild-0.28.1.tgz",
+      "integrity": "sha512-HrJrvZv5ayxBzPfwphOoNzkzOIIlifzk0KJrGK2c8R4+LKpMtpYLQeUdjnwjWv/LZlkH2laZk+4w78pi99D4Vw==",
       "dev": true,
       "hasInstallScript": true,
       "license": "MIT",
@@ -492,32 +492,32 @@
         "node": ">=18"
       },
       "optionalDependencies": {
-        "@esbuild/aix-ppc64": "0.28.0",
-        "@esbuild/android-arm": "0.28.0",
-        "@esbuild/android-arm64": "0.28.0",
-        "@esbuild/android-x64": "0.28.0",
-        "@esbuild/darwin-arm64": "0.28.0",
-        "@esbuild/darwin-x64": "0.28.0",
-        "@esbuild/freebsd-arm64": "0.28.0",
-        "@esbuild/freebsd-x64": "0.28.0",
-        "@esbuild/linux-arm": "0.28.0",
-        "@esbuild/linux-arm64": "0.28.0",
-        "@esbuild/linux-ia32": "0.28.0",
-        "@esbuild/linux-loong64": "0.28.0",
-        "@esbuild/linux-mips64el": "0.28.0",
-        "@esbuild/linux-ppc64": "0.28.0",
-        "@esbuild/linux-riscv64": "0.28.0",
-        "@esbuild/linux-s390x": "0.28.0",
-        "@esbuild/linux-x64": "0.28.0",
-        "@esbuild/netbsd-arm64": "0.28.0",
-        "@esbuild/netbsd-x64": "0.28.0",
-        "@esbuild/openbsd-arm64": "0.28.0",
-        "@esbuild/openbsd-x64": "0.28.0",
-        "@esbuild/openharmony-arm64": "0.28.0",
-        "@esbuild/sunos-x64": "0.28.0",
-        "@esbuild/win32-arm64": "0.28.0",
-        "@esbuild/win32-ia32": "0.28.0",
-        "@esbuild/win32-x64": "0.28.0"
+        "@esbuild/aix-ppc64": "0.28.1",
+        "@esbuild/android-arm": "0.28.1",
+        "@esbuild/android-arm64": "0.28.1",
+        "@esbuild/android-x64": "0.28.1",
+        "@esbuild/darwin-arm64": "0.28.1",
+        "@esbuild/darwin-x64": "0.28.1",
+        "@esbuild/freebsd-arm64": "0.28.1",
+        "@esbuild/freebsd-x64": "0.28.1",
+        "@esbuild/linux-arm": "0.28.1",
+        "@esbuild/linux-arm64": "0.28.1",
+        "@esbuild/linux-ia32": "0.28.1",
+        "@esbuild/linux-loong64": "0.28.1",
+        "@esbuild/linux-mips64el": "0.28.1",
+        "@esbuild/linux-ppc64": "0.28.1",
+        "@esbuild/linux-riscv64": "0.28.1",
+        "@esbuild/linux-s390x": "0.28.1",
+        "@esbuild/linux-x64": "0.28.1",
+        "@esbuild/netbsd-arm64": "0.28.1",
+        "@esbuild/netbsd-x64": "0.28.1",
+        "@esbuild/openbsd-arm64": "0.28.1",
+        "@esbuild/openbsd-x64": "0.28.1",
+        "@esbuild/openharmony-arm64": "0.28.1",
+        "@esbuild/sunos-x64": "0.28.1",
+        "@esbuild/win32-arm64": "0.28.1",
+        "@esbuild/win32-ia32": "0.28.1",
+        "@esbuild/win32-x64": "0.28.1"
       }
     },
     "node_modules/fsevents": {
diff --git a/server/package.json b/server/package.json
index 038693f..b269728 100644
--- a/server/package.json
+++ b/server/package.json
@@ -7,7 +7,7 @@
     "lsp",
     "openmodelica"
   ],
-  "version": "0.2.3",
+  "version": "0.3.0",
   "author": "Andreas Heuermann, Osman Karabel, Evan Hedbor, PaddiM8",
   "license": "(AGPL-3.0-only OR LicenseRef-OSMC-PL-1-8)",
   "engines": {
diff --git a/server/src/analysis/resolveReference.ts b/server/src/analysis/resolveReference.ts
index 0cf702b..9e044a9 100644
--- a/server/src/analysis/resolveReference.ts
+++ b/server/src/analysis/resolveReference.ts
@@ -474,7 +474,6 @@ function resolveReferenceInLibrary(
   library: ModelicaLibrary,
   reference: UnresolvedAbsoluteReference,
 ): ResolvedReference | null {
-
   let alreadyResolved: ResolvedReference | null = null;
   for (let i = 0; i < reference.symbols.length; i++) {
     alreadyResolved = resolveNext(library, reference.symbols[i], alreadyResolved);
diff --git a/server/src/analyzer.ts b/server/src/analyzer.ts
index 0bcec75..a974a36 100644
--- a/server/src/analyzer.ts
+++ b/server/src/analyzer.ts
@@ -57,6 +57,7 @@ import { uriToPath } from './util';
 import * as TreeSitterUtil from './util/tree-sitter';
 import { getAllDeclarationsInTree } from './util/declarations';
 import { logger } from './util/logger';
+import { extractHoverInformation } from './util/hoverUtil';
 
 export default class Analyzer {
   #project: ModelicaProject;
@@ -230,6 +231,74 @@ export default class Analyzer {
     }
   }
 
+  /**
+   * Returns hover information for the symbol at the given position.
+   *
+   * @param uri the opened document
+   * @param position the cursor position
+   * @returns Markdown hover content, or `null` if not found.
+   */
+  public async findHoverInfo(
+    uri: LSP.DocumentUri,
+    position: LSP.Position,
+  ): Promise<LSP.Hover | null> {
+    const path = uriToPath(uri);
+    const document = await this.#project.getDocument(path);
+    if (!document || !document.tree.rootNode) {
+      return null;
+    }
+
+    const reference = this.getReferenceAt(document, position);
+    if (!reference) {
+      return null;
+    }
+
+    // Try to resolve via the full resolution system (handles external classes, qualified names).
+    try {
+      const result = resolveReference(document.project, reference, 'declaration');
+      if (result?.node.type === 'class_definition') {
+        return this.hoverFromClassDef(result.node);
+      }
+    } catch (e: unknown) {
+      if (e instanceof Error) {
+        logger.debug('Caught exception in findHoverInfo: ', e.stack);
+      }
+    }
+
+    // Fallback: search the current document for a matching class definition.
+    // This handles standalone files where the file name differs from the class name.
+    const lastName = reference.symbols[reference.symbols.length - 1];
+    const localClassDef = TreeSitterUtil.findFirst(
+      document.tree.rootNode,
+      (n) => n.type === 'class_definition' && TreeSitterUtil.hasIdentifier(n, lastName),
+    );
+    if (localClassDef) {
+      return this.hoverFromClassDef(localClassDef);
+    }
+
+    return null;
+  }
+
+  /**
+   * Builds a Markdown hover from a class definition node.
+   *
+   * @param classDefNode a `class_definition` syntax node
+   * @returns a Markdown {@link LSP.Hover}, or `null` if no hover information
+   *     could be extracted from the node.
+   */
+  private hoverFromClassDef(classDefNode: SyntaxNode): LSP.Hover | null {
+    const hoverInfo = extractHoverInformation(classDefNode);
+    if (!hoverInfo) {
+      return null;
+    }
+    return {
+      contents: {
+        kind: LSP.MarkupKind.Markdown,
+        value: hoverInfo,
+      } as LSP.MarkupContent,
+    };
+  }
+
   /**
    * Returns the reference at the document position, or `null` if no reference
    * exists.
diff --git a/server/src/server.ts b/server/src/server.ts
index a65a389..6bfe6a8 100644
--- a/server/src/server.ts
+++ b/server/src/server.ts
@@ -133,7 +133,7 @@ export class ModelicaServer {
       completionProvider: undefined,
       declarationProvider: true,
       definitionProvider: true,
-      hoverProvider: false,
+      hoverProvider: true,
       signatureHelpProvider: undefined,
       documentSymbolProvider: true,
       colorProvider: false,
@@ -148,6 +148,11 @@ export class ModelicaServer {
     };
   }
 
+  /**
+   * Register handlers for the events from the Language Server Protocol
+   *
+   * @param connection
+   */
   public register(connection: LSP.Connection): void {
     // Make the text document manager listen on the connection
     // for open, change and close text document events
@@ -160,6 +165,7 @@ export class ModelicaServer {
     connection.onDeclaration(this.onDeclaration.bind(this));
     connection.onDefinition(this.onDefinition.bind(this));
     connection.onDocumentSymbol(this.onDocumentSymbol.bind(this));
+    connection.onHover(this.onHover.bind(this));
   }
 
   private async onInitialized(): Promise<void> {
@@ -282,11 +288,15 @@ export class ModelicaServer {
     return [locationLink];
   }
 
+  // ==============================
+  // Language server event handlers
+  // ==============================
+
   /**
    * Provide symbols defined in document.
    *
-   * @param params  Unused.
-   * @returns       Symbol information.
+   * @param symbolParams  Document symbols of given text document.
+   * @returns             Symbol information.
    */
   private async onDocumentSymbol(
     params: LSP.DocumentSymbolParams,
@@ -297,6 +307,17 @@ export class ModelicaServer {
     logger.debug(`onDocumentSymbol`);
     return this.#analyzer.getDeclarationsForUri(params.textDocument.uri);
   }
+
+  /**
+   * Provide hover information at given text document position.
+   *
+   * @param params  Text document position.
+   * @returns       Hover information.
+   */
+  private async onHover(params: LSP.HoverParams): Promise<LSP.Hover | null> {
+    logger.debug('onHover');
+    return this.#analyzer.findHoverInfo(params.textDocument.uri, params.position);
+  }
 }
 
 // Create a connection for the server, using Node's IPC as a transport.
diff --git a/server/src/util/hoverUtil.ts b/server/src/util/hoverUtil.ts
new file mode 100644
index 0000000..c097de2
--- /dev/null
+++ b/server/src/util/hoverUtil.ts
@@ -0,0 +1,160 @@
+/*
+ * This file is part of OpenModelica.
+ *
+ * Copyright (c) 1998-2026, Open Source Modelica Consortium (OSMC),
+ * c/o Linköpings universitet, Department of Computer and Information Science,
+ * SE-58183 Linköping, Sweden.
+ *
+ * All rights reserved.
+ *
+ * THIS PROGRAM IS PROVIDED UNDER THE TERMS OF AGPL VERSION 3 LICENSE OR
+ * THIS OSMC PUBLIC LICENSE (OSMC-PL) VERSION 1.8.
+ * ANY USE, REPRODUCTION OR DISTRIBUTION OF THIS PROGRAM CONSTITUTES
+ * RECIPIENT'S ACCEPTANCE OF THE OSMC PUBLIC LICENSE OR THE GNU AGPL
+ * VERSION 3, ACCORDING TO RECIPIENTS CHOICE.
+ *
+ * The OpenModelica software and the OSMC (Open Source Modelica Consortium)
+ * Public License (OSMC-PL) are obtained from OSMC, either from the above
+ * address, from the URLs:
+ * http://www.openmodelica.org or
+ * https://github.com/OpenModelica/ or
+ * http://www.ida.liu.se/projects/OpenModelica,
+ * and in the OpenModelica distribution.
+ *
+ * GNU AGPL version 3 is obtained from:
+ * https://www.gnu.org/licenses/licenses.html#GPL
+ *
+ * This program is distributed WITHOUT ANY WARRANTY; without
+ * even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE, EXCEPT AS EXPRESSLY SET FORTH
+ * IN THE BY RECIPIENT SELECTED SUBSIDIARY LICENSE CONDITIONS OF OSMC-PL.
+ *
+ * See the full OSMC Public License conditions for more details.
+ *
+ */
+
+import { Node as SyntaxNode } from 'web-tree-sitter';
+import * as TreeSitterUtil from './tree-sitter';
+import { logger } from './logger';
+
+/**
+ * Extracts hover information for a `class_definition` syntax node.
+ *
+ * Returns Markdown-formatted documentation including the class description,
+ * inputs, outputs, and parameters.
+ *
+ * @param classDefNode  A `class_definition` syntax node.
+ * @returns Hover content in Markdown, or null if unavailable.
+ */
+export function extractHoverInformation(classDefNode: SyntaxNode): string | null {
+  if (classDefNode.type !== 'class_definition') {
+    logger.debug('extractHoverInformation: Node is not a class_definition.');
+    return null;
+  }
+
+  const classSpecifier = classDefNode.childForFieldName('classSpecifier');
+  const nameNode = classSpecifier?.childForFieldName('identifier');
+  if (!nameNode) {
+    logger.debug('extractHoverInformation: No identifier found in class_definition.');
+    return null;
+  }
+
+  const className = nameNode.text;
+  const classDescription = TreeSitterUtil.getDescriptionString(classDefNode);
+  const { inputsInfo, outputsInfo, parameterInfo, parameterInputsInfo, parameterOutputsInfo } =
+    extractComponentInformation(classDefNode);
+
+  const classDefinition = [
+    TreeSitterUtil.getClassPrefixes(classDefNode),
+    className,
+    classDescription,
+  ]
+    .filter((e) => e)
+    .join(' ')
+    .trim();
+
+  return [
+    '```modelica',
+    classDefinition,
+    '```',
+    '---',
+    inputsInfo,
+    parameterInputsInfo,
+    outputsInfo,
+    parameterOutputsInfo,
+    parameterInfo,
+  ].join('\n');
+}
+
+function extractComponentInformation(classDefNode: SyntaxNode): {
+  inputsInfo: string | undefined;
+  outputsInfo: string | undefined;
+  parameterInfo: string | undefined;
+  parameterInputsInfo: string | undefined;
+  parameterOutputsInfo: string | undefined;
+} {
+  const inputsInfo: string[] = [];
+  const outputsInfo: string[] = [];
+  const parameterInfo: string[] = [];
+  const parameterInputsInfo: string[] = [];
+  const parameterOutputsInfo: string[] = [];
+
+  TreeSitterUtil.forEach(classDefNode, (node) => {
+    if (node.type === 'component_clause') {
+      const prefix = TreeSitterUtil.getPrefix(node);
+      const isParameter = TreeSitterUtil.isParameter(node);
+      if (prefix !== undefined || isParameter) {
+        const typeSpecifierNode = node.childForFieldName('typeSpecifier');
+        const typeSpecifier = typeSpecifierNode ? typeSpecifierNode.text : 'Unknown Type';
+
+        const componentDeclarationNode = node.childForFieldName('componentDeclarations');
+        const declarationNode =
+          componentDeclarationNode?.firstChild?.childForFieldName('declaration');
+        const identifier = declarationNode ? declarationNode.text : 'Unknown Identifier';
+
+        const descriptionNode =
+          componentDeclarationNode?.firstChild?.childForFieldName('descriptionString');
+        const description = descriptionNode ? descriptionNode.text : '';
+
+        const info =
+          [isParameter ? 'parameter' : undefined, prefix, typeSpecifier, identifier, description]
+            .filter((e) => e !== undefined)
+            .join(' ') + ';';
+
+        if (prefix === 'input') {
+          if (isParameter) {
+            parameterInputsInfo.push(info);
+          } else {
+            inputsInfo.push(info);
+          }
+        }
+        if (prefix === 'output') {
+          if (isParameter) {
+            parameterOutputsInfo.push(info);
+          } else {
+            outputsInfo.push(info);
+          }
+        }
+        if (isParameter) {
+          parameterInfo.push(info);
+        }
+      }
+    }
+    return true;
+  });
+
+  return {
+    inputsInfo: formatSection('**Inputs**', inputsInfo),
+    parameterInputsInfo: formatSection('**Parameter Inputs**', parameterInputsInfo),
+    outputsInfo: formatSection('**Outputs**', outputsInfo),
+    parameterOutputsInfo: formatSection('**Parameter Outputs**', parameterOutputsInfo),
+    parameterInfo: formatSection('**Parameter**', parameterInfo),
+  };
+}
+
+function formatSection(header: string, lines: string[]): string | undefined {
+  if (lines.length === 0) {
+    return undefined;
+  }
+  return [header, '```modelica', lines.join('\n'), '```'].join('\n');
+}
diff --git a/server/src/util/test/hover.test.ts b/server/src/util/test/hover.test.ts
new file mode 100644
index 0000000..53a31c6
--- /dev/null
+++ b/server/src/util/test/hover.test.ts
@@ -0,0 +1,135 @@
+/*
+ * This file is part of OpenModelica.
+ *
+ * Copyright (c) 1998-2026, Open Source Modelica Consortium (OSMC),
+ * c/o Linköpings universitet, Department of Computer and Information Science,
+ * SE-58183 Linköping, Sweden.
+ *
+ * All rights reserved.
+ *
+ * THIS PROGRAM IS PROVIDED UNDER THE TERMS OF AGPL VERSION 3 LICENSE OR
+ * THIS OSMC PUBLIC LICENSE (OSMC-PL) VERSION 1.8.
+ * ANY USE, REPRODUCTION OR DISTRIBUTION OF THIS PROGRAM CONSTITUTES
+ * RECIPIENT'S ACCEPTANCE OF THE OSMC PUBLIC LICENSE OR THE GNU AGPL
+ * VERSION 3, ACCORDING TO RECIPIENTS CHOICE.
+ *
+ * The OpenModelica software and the OSMC (Open Source Modelica Consortium)
+ * Public License (OSMC-PL) are obtained from OSMC, either from the above
+ * address, from the URLs:
+ * http://www.openmodelica.org or
+ * https://github.com/OpenModelica/ or
+ * http://www.ida.liu.se/projects/OpenModelica,
+ * and in the OpenModelica distribution.
+ *
+ * GNU AGPL version 3 is obtained from:
+ * https://www.gnu.org/licenses/licenses.html#GPL
+ *
+ * This program is distributed WITHOUT ANY WARRANTY; without
+ * even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE, EXCEPT AS EXPRESSLY SET FORTH
+ * IN THE BY RECIPIENT SELECTED SUBSIDIARY LICENSE CONDITIONS OF OSMC-PL.
+ *
+ * See the full OSMC Public License conditions for more details.
+ *
+ */
+
+import assert from 'node:assert/strict';
+import path from 'node:path';
+import * as LSP from 'vscode-languageserver/node';
+import { initializeParser } from '../../parser';
+import Analyzer from '../../analyzer';
+import { ModelicaLibrary, ModelicaProject } from '../../project';
+import { extractHoverInformation } from '../hoverUtil';
+import * as TreeSitterUtil from '../tree-sitter';
+import { pathToUri } from '../index';
+
+const TEST_LIBRARY_PATH = path.join(
+  __dirname,
+  '../../analysis/test/TestLibrary',
+);
+const TEST_CLASS_PATH = path.join(
+  TEST_LIBRARY_PATH,
+  'TestPackage',
+  'TestClass.mo',
+);
+
+describe('extractHoverInformation', () => {
+  it('returns null for non-class_definition nodes', async () => {
+    const parser = await initializeParser();
+    const tree = parser.parse('function Foo input Real x; end Foo;');
+    assert.ok(tree);
+    // Pass the root node (stored_definitions), not a class_definition
+    const result = extractHoverInformation(tree.rootNode);
+    assert.equal(result, null);
+  });
+
+  it('returns hover content for a function with inputs', async () => {
+    const parser = await initializeParser();
+    const project = new ModelicaProject(parser);
+    project.addLibrary(await ModelicaLibrary.load(project, TEST_LIBRARY_PATH, true));
+
+    const document = await project.getDocument(TEST_CLASS_PATH);
+    assert.ok(document);
+
+    const classDefNode = TreeSitterUtil.findFirst(
+      document.tree.rootNode,
+      (n) => n.type === 'class_definition' && TreeSitterUtil.hasIdentifier(n, 'TestClass'),
+    );
+    assert.ok(classDefNode, 'TestClass class_definition not found');
+
+    const result = extractHoverInformation(classDefNode);
+    assert.ok(result, 'Expected non-null hover content');
+    assert.ok(result.includes('TestClass'), 'Expected class name in hover');
+    assert.ok(result.includes('**Inputs**'), 'Expected inputs section in hover');
+    assert.ok(result.includes('twoE'), 'Expected input twoE in hover');
+  });
+});
+
+describe('Analyzer.findHoverInfo', () => {
+  let analyzer: Analyzer;
+
+  beforeEach(async () => {
+    const parser = await initializeParser();
+    analyzer = new Analyzer(parser);
+    await analyzer.loadLibrary(pathToUri(TEST_LIBRARY_PATH), true);
+  });
+
+  it('returns hover info when hovering on a class name in its definition', async () => {
+    // `function TestClass` — position (4, 9) is on 'T' of TestClass
+    const uri = pathToUri(TEST_CLASS_PATH);
+    const position: LSP.Position = { line: 4, character: 9 };
+
+    const hover = await analyzer.findHoverInfo(uri, position);
+    assert.ok(hover, 'Expected non-null hover for class definition');
+
+    const content = (hover.contents as LSP.MarkupContent).value;
+    assert.ok(content.includes('TestClass'), 'Expected class name in hover content');
+    assert.ok(content.includes('**Inputs**'), 'Expected inputs section');
+  });
+
+  it('returns hover info for a fully qualified class name reference', async () => {
+    // In Constants.mo: `package Constants` on line 2 (0-indexed)
+    // hover on 'C' at (2, 8)
+    const constantsPath = path.join(TEST_LIBRARY_PATH, 'Constants.mo');
+    const uri = pathToUri(constantsPath);
+    const position: LSP.Position = { line: 2, character: 8 };
+
+    const hover = await analyzer.findHoverInfo(uri, position);
+    assert.ok(hover, 'Expected non-null hover for package class');
+    const content = (hover.contents as LSP.MarkupContent).value;
+    assert.ok(content.includes('Constants'), 'Expected class name in hover');
+  });
+
+  it('resolves a qualified within-clause reference to the top-level library', async () => {
+    // In TestClass.mo line 0: `within TestLibrary.TestPackage;`
+    // Hovering on 'T' (col 7) resolves 'TestLibrary' via the qualified name.
+    const uri = pathToUri(TEST_CLASS_PATH);
+    // col 7 = start of 'TestLibrary' in the within clause
+    const position: LSP.Position = { line: 0, character: 7 };
+
+    const hover = await analyzer.findHoverInfo(uri, position);
+    assert.ok(hover, 'Expected hover for qualified name in within clause');
+    const content = (hover.contents as LSP.MarkupContent).value;
+    assert.ok(content.includes('TestLibrary'), 'Expected library name in hover content');
+  });
+});
diff --git a/server/src/util/tree-sitter.ts b/server/src/util/tree-sitter.ts
index 76da9ae..16f9547 100644
--- a/server/src/util/tree-sitter.ts
+++ b/server/src/util/tree-sitter.ts
@@ -41,7 +41,6 @@
 
 import { Node as SyntaxNode, Point } from 'web-tree-sitter';
 import * as LSP from 'vscode-languageserver/node';
-
 import { TextDocument } from 'vscode-languageserver-textdocument';
 
 /**
@@ -124,6 +123,38 @@ export function isDefinition(n: SyntaxNode): boolean {
   }
 }
 
+/**
+ * Get input/output prefix from node.
+ *
+ * @param n Node of tree
+ * @returns Base prefix or undefined.
+ */
+export function getPrefix(n: SyntaxNode): string | undefined {
+  switch (n.type) {
+    case 'short_class_specifier':
+      return n.childForFieldName('basePrefix')?.text;
+    case 'component_clause':
+      return n.childForFieldName('input')?.text || n.childForFieldName('output')?.text;
+    default:
+      return undefined;
+  }
+}
+
+/**
+ * Check if node is parameter.
+ *
+ * @param n Node of tree
+ * @returns True if node has parameter keyword.
+ */
+export function isParameter(n: SyntaxNode): boolean {
+  switch (n.type) {
+    case 'component_clause':
+      return n.childForFieldName('parameter') !== null;
+    default:
+      return false;
+  }
+}
+
 /**
  * Tell if a node is a variable declaration.
  *
@@ -391,6 +422,27 @@ export function getClassPrefixes(node: SyntaxNode): string | null {
   return classPrefixNode.text;
 }
 
+/**
+ * Get description string.
+ *
+ * @param node  Syntax node
+ * @returns     Description string of node.
+ */
+export function getDescriptionString(node: SyntaxNode): string | undefined {
+  let classNode: SyntaxNode | null;
+
+  switch (node.type) {
+    case 'class_definition':
+      classNode = node.childForFieldName('classSpecifier');
+      if (classNode !== null) {
+        return getDescriptionString(classNode);
+      }
+      return undefined;
+    default:
+      return node.childForFieldName('descriptionString')?.text;
+  }
+}
+
 export function positionToPoint(position: LSP.Position): Point {
   return { row: position.line, column: position.character };
 }